My model looks weird
I can give better advice if you specify what you expect it to look like. It appears to me that you want to fix the smoothing groups. Depending on what you want, you can check out Auto Smoothing: and alternatively how to use the weighted normals modifier
Another thing I noticed is that you have auto keying on(blue dot on line editor) toggle this off so it isn't highlighted in blue and remove animation from all objects in the scene. If you forget this is on, objects can end up in unwanted locations and be confusing.